As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED TO MAINTENANCE THAT THE LEFT AMP GAUGE WENT TO ZERO AMPS, BUT LEFT GENERATOR STAYED ON-LINE. INVESTIGATION REVEALED CHAFED WIRE BUNDLE IN LEFT MIB AT GROUND ATTACH POINT E253. REPAIRED 7 CHAFED WIRES AND PROTECTED AS NEEDED. SYSTEM OPS CHECKED SATISFACTORY. (X)